Re: [Roll] FW: New Version Notification for draft-thubert-roll-eliding-dio-information-02.txt

<> Mon, 04 November 2019 14:39 UTC

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To: Routing Over Low power and Lossy networks <>
Thread-Topic: [Roll] FW: New Version Notification for draft-thubert-roll-eliding-dio-information-02.txt
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Subject: Re: [Roll] FW: New Version Notification for draft-thubert-roll-eliding-dio-information-02.txt
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Hello all,

The draft doesn't talk about unicast/multicast DIS and the resulting
effects on the Trickle timer at the responding router.
In , we
addressed this question with a pair of flags:
- N for "no-inconsistency" to signal that the Trickle timer should not be
reset, even with a multicast DIS
- T to signal if a unicast or multicast DIO was solicited. This flag was
meant to be set if a node thinks it is the only one needing the
information (e.g. after a reboot)
Another aspect of the above draft was to request an immediate, one-off
response, in addition to let the general Trickle mechanism trigger a
response at a pseudo-random time according to its parameters.
The behavior is illustrated in a table in Section 5.
The "DIO Option Request" option that we had described in the above draft
is replaced by the R, D, P, M, O flags of

Opinions on adding the N and T flags and the immediate response into
Best regards


Le 25/10/19 16:52, « Roll on behalf of Pascal Thubert (pthubert) »
< on behalf of> a écrit :

>Dear all:
>This commit adds text from Li and other additions on eliding DAO content
>as well.
>-----Original Message-----
>From: <>
>Sent: vendredi 25 octobre 2019 16:48
>To: Pascal Thubert (pthubert) <>; Li Zhao (liz3)
><>; Rahul Jadhav <>; Rahul Arvind
>Jadhav <>; Dominique Barthel
>Subject: New Version Notification for
>A new version of I-D, draft-thubert-roll-eliding-dio-information-02.txt
>has been successfully submitted by Pascal Thubert and posted to the IETF
>Name:		draft-thubert-roll-eliding-dio-information
>Revision:	02
>Title:		Eliding and Querying RPL Information
>Document date:	2019-10-25
>Group:		Individual Submission
>Pages:		16
>   This document presents a method to safely elide a group of RPL
>   options in a DIO message by synchonizing the state associated with
>   each of these options between parent and child using a new sequence
>   counter in DIO or DAO messages.  A child that missed a DIO message
>   with an update of any of those protected options detects it by the
>   change of sequence counter and queries the update with a DIS Message.
>   The draft also provides a method to fully elide the options in a DAO
>   message.
>Please note that it may take a couple of minutes from the time of
>submission until the htmlized version and diff are available at
>The IETF Secretariat
>Roll mailing list


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